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发明名称
Frequency-selective systems
摘要
申请公布号
US2724807(A)
申请公布日期
1955.11.22
申请号
US19500144566
申请日期
1950.02.16
申请人
REX HAROLD B
发明人
REX HAROLD B.
分类号
H03G5/08;H04B1/16
主分类号
H03G5/08
代理机构
代理人
主权项
地址
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